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dmaengine: stm32-mdma: memset stm32_mdma_chan_config struct before using it

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New bool m2m_hw has been added at the end of stm32_mdma_chan_config struct
to support the STM32 DMA MDMA chaining.

m2m_hw is set true in stm32_mdma_slave_config() if peripheral_size is set,
but m2m_hw is never initialized false.

To ensure this case, and any further new update of the structure, memset it
to 0 before using it.

Fixes: 6968743227 ("dmaengine: stm32-mdma: add support to be triggered by STM32 DMA")
Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Link: https://lore.kernel.org/r/20221017131413.202567-1-amelie.delaunay@foss.st.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Amelie Delaunay 2022-10-17 15:14:13 +02:00 committed by Vinod Koul
parent 9abf2313ad
commit 5a637f83d9
1 changed files with 1 additions and 0 deletions
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1
drivers/dma/stm32-mdma.c
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@ -1539,6 +1539,7 @@ static struct dma_chan *stm32_mdma_of_xlate(struct of_phandle_args *dma_spec,
return NULL;
}
memset(&config, 0, sizeof(config));
config.request = dma_spec->args[0];
config.priority_level = dma_spec->args[1];
config.transfer_config = dma_spec->args[2];